A system for network support of supplemental local applications allows one workstation application, communicating with a host computer on a network, to invoke a second workstation application that takes control of the first application's connection to the network. The first application waits for the...http://www.google.com.au/patents/US5680549?utm_source=gb-gplus-sharePatent US5680549 - System for transferring network connections from first to second program where the first enters an inactive state and resumes control of connections when second terminates 
